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Finding the Fourth Proportional to 321,476.85, 482,215.28 and 108,226.94

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Solution

The fourth proportional to 321,476.85, 482,215.28 and 108,226.94 is: 162,340.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,476.85 : 482,215.28 = 108,226.94 : x
  2. Step 2: Convert to fraction form
    321,476.85/482,215.28 = 108,226.94/x
  3. Step 3: Cross multiply
    321,476.85x = 482,215.28 × 108,226.94
  4. Step 4: Simplify right side
    321,476.85x = 52,188,681,223.43
  5. Step 5: Solve for x
    x = 52,188,681,223.43/321,476.85
  6. Step 6: Final answer
    x = 162,340.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.